AT91RM9200的USB host测试代码，仅供学习（ADS1.2）

该代码是用自己设计的stm32最小系统，驱动ov7670摄像头，使视频能够显示在3.2寸的液晶屏上

SD卡的其本操作函数，很值得借鉴使用．对于SD卡的编程有很大帮助．-SD Card function of its present operation, it is worth learning to use. Programming for the SD card has great help to me.

支持S3C24x0/yaffs/USB/CS8900/DM9000/OpenJTAG/Nor,Nand启动的u-boot 添加的功能： 1. 同时支持S3C2410和S3C2440 2. 支持串口xmodem协议 3. 支持USB下载，可以在PC上使用dnw传数据 4. 支持网卡芯片CS8900 5. 支持NAND Flash读写 6. 支持从Nor/Nand Flash启动 7. 支持烧写yaffs文件系统映象-Support S3C24x0/yaffs/USB/CS8900/DM9000/OpenJTAG/Nor, Nand start u-boot to add the functionality: 1. At the same time, support for S3C2410 and S3C24402. Support XMODEM Serial Protocol 3. To support the USB to download, you can use the PC on dnw Chuan-data 4. to support the network adapter chip CS89005. support for NAND Flash read and write 6. support from the Nor/Nand Flash boot 7. yaffs file system support programmer mapping

44b0开发板试验代码ucos实验MP3.rar-Development board 44b0 experimental test code uCOS MP3.rar

外扩ram-Outside the extended ram

本源代码是基于keil环境下的，可以进行modbus协议之间的转换，例如：modbus rtu，modbus tcp，modbus ascll等等，对初学者都有很好的作用

#包括；

IIC协议程序，该程序时IIC协议的驱动，通过该程序可以访问IIC协议的器件-IIC agreement procedure, the program IIC protocol-driven, through which the program can access the device IIC Protocol

2802 步进电机控制器，可以作为步进电机驱动设计的重要参考-2802 stepper motor controller, stepper motor driver can be used as an important reference design

本资料对如何最大限度的使用2812片内ram及不得已使用2812外扩RAM及flash技术进行了极为详尽的剖析，是本人及其它嵌入式前辈的精心之作，隆重推荐！-This information on how to maximize the use of 2812 and the last resort the use of 2812 within the ram outside the extended RAM and flash technology, a very detailed analysis of both myself and the other for the embedded predecessors carefully! Grand Recommended